Drill bit Proline 71645, metal, Ø 16 mm, length 450 mm, 1 pc

Proline 71645 is a single metal drill bit with a straight shank, 16 mm diameter and 450 mm overall length. Designed for drilling holes in metal, this long bit is suitable for workshop and heavy-duty drilling applications where precise hole dimensions and compatibility with standard drill machines and holders are required.

Advantages

The Proline 71645 offers a long 450 mm length that enables deep-hole drilling and extended reach without frequent repositioning. Its 16 mm diameter provides consistent hole size for assembly and fastening tasks. The straight shank design ensures secure clamping in chucks and holders, while the single-piece construction reduces wobble and improves concentricity during rotation.

Suitable for

• Drilling through metal sheets and plates
• Workshop and industrial drilling setups
• Preparing holes for bolts, rivets and threaded inserts
• Use with drill presses and handheld drills equipped for long bits

Key specifications

• Material application: metal drilling
• Diameter: 16 mm
• Overall length: 450 mm
• Shank type: straight shank for chucks and holders
• Quantity: 1 piece

How to use

Secure the Proline 71645 in a chuck or holder appropriate for a straight shank of this diameter and length. Select an appropriate drilling speed and feed for the metal being worked, and use cutting fluid or coolant as required to reduce heat and extend tool life. Begin drilling with light pressure to establish the pilot, then apply steady feed to complete the hole while maintaining alignment. Clear metal chips periodically to avoid clogging and overheating.

Usage recommendations

For best results when drilling metal, use appropriate cutting fluid, maintain moderate speeds for a 16 mm bit, and ensure the workpiece is firmly clamped. Inspect the bit for wear before use and replace if the cutting edges are dull to maintain hole accuracy.